2163120772 has 24 divisors (see below), whose sum is σ = 3809789984. Its totient is φ = 1074632832.

The previous prime is 2163120733. The next prime is 2163120779. The reversal of 2163120772 is 2770213612.

It is not an unprimeable number, because it can be changed into a prime (2163120779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411223 + ... + 416449.

Almost surely, 2^2163120772 is an apocalyptic number.

It is an amenable number.

2163120772 is a deficient number, since it is larger than the sum of its proper divisors (1646669212).

2163120772 is a wasteful number, since it uses less digits than its factorization.

2163120772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875 (or 5873 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2163120772 is about 46509.3621973039. The cubic root of 2163120772 is about 1293.2830606869.

The spelling of 2163120772 in words is "two billion, one hundred sixty-three million, one hundred twenty thousand, seven hundred seventy-two".